helene_t, on 2017-August-13, 19:03, said:
A take-out double is defined as something like 13+ TP with support for the unbid suits OR 17+ anything. OK this is oversimplified but you get my point.
GIB does not give explanations containing OR.
That's true, but precisely why this sounds like a buggy description. The same auction in hearts or spades, or a direct takeout of 1 of any suit, are all described as 13+ total points and shortness in the doubled suit (because GIB doesn't try to combine the strong hand distribution into the description with OR).